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Field
Abstract
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Before
Consumer preferences for fig jams will be elicited in order to estimate WTP values associated with attributes of Short Food Supply Chains (SFSC), namely related to number of intermediaries and distance from the production area. Subjects are recruited from the population of Athens, Greece and participate in a second price auction where they bid to buy 400 gr of a jar of fig jam. Subjects are randomly assigned to one of the following treatments, where we vary on a between-subjects basis the jams available for auction. Subjects bid simultaneously for two of the jams:
Treatment 1: Jam purchased directly from the producer and production area is at a Shorter distance vs. Jam purchased from an intermediary and production area is at a Shorter distance
Treatment 2: Jam purchased directly from the producer and production area is at a Shorter distance vs. Jam purchased directly from the producer and production area is at a Longer distance
Treatment 3: Jam purchased from an intermediary and production area is at a Longer distance vs. Jam purchased from an intermediary and production area is at a Shorter distance
Treatment 4: Jam purchased from an intermediary and production area is at a Longer distance vs. Jam purchased directly from the producer
and production area is at a Longer distance
Subjects go through three rounds of auctions. In the first round they have no information about the attributes of the jams and they are asked to bid based on appearance only. In Round 2, they receive information about the jams and in Round 3 they get to taste the jams before they bid.
Moreover, to test the effect of anchoring and how it might prevail with time pressure, subjects receive a randomly determined initial bid. They are then given either a short amount of time to adjust their bid or a longer amount of time to adjust it with the understanding that if time expires, the standing bid is the binding bid.
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After
Consumer preferences for fig jams will be elicited in order to estimate WTP values associated with attributes of Short Food Supply Chains (SFSC), namely related to number of intermediaries and distance from the production area. Subjects are recruited from the population of Athens, Greece and participate in a second price auction where they bid to buy 400 gr of a jar of fig jam. Subjects are randomly assigned to one of the following treatments, where we vary on a between-subjects basis the jams available for auction. Subjects bid simultaneously for two of the jams:
Treatment 1: Jam purchased directly from the producer and production area is at a Shorter distance vs. Jam purchased from an intermediary and production area is at a Shorter distance
Treatment 2: Jam purchased directly from the producer and production area is at a Shorter distance vs. Jam purchased directly from the producer and production area is at a Longer distance
Treatment 3: Jam purchased from an intermediary and production area is at a Longer distance vs. Jam purchased from an intermediary and production area is at a Shorter distance
Treatment 4: Jam purchased from an intermediary and production area is at a Longer distance vs. Jam purchased directly from the producer
and production area is at a Longer distance
Subjects go through three rounds of auctions. In the first round they have no information about the attributes of the jams and they are asked to bid based on appearance only. In Round 2, they receive information about the jams and in Round 3 they get to taste the jams before they bid.
Moreover, to test the effect of anchoring and how it might prevail with time pressure, subjects receive a randomly determined initial bid. They are then given either a short amount of time to adjust their bid or a longer amount of time to adjust it with the understanding that if time expires, the standing bid is the binding bid. Subjects will be randomly assigned to a time limit of 20, 30, 40 or 50 seconds, which will remain constant across all rounds.
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Field
Last Published
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Before
June 23, 2023 03:43 PM
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After
June 24, 2023 08:09 AM
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Field
Intervention (Public)
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Before
Subjects receive a 30 Euro coupon for participation and then participate in a zero counting task for 10 rounds, where they can earn up to 50 cents per round, so that they make up to 5 Euros by round 10. They are told from the beginning that for only 1 subject in each group their decisions will be realized and only for that subject earnings from the zero counting task and winnings from the auction are realized.
Subjects are randomly assigned to one of the following treatments, where we vary on a between-subjects basis the fig jam available for auction. Subjects bid simultaneously for two of the jams:
Treatment 1: Jam purchased from the producer - Closer distance vs. Jam purchased from the retailer - Closer distance
Treatment 2: Jam purchased from the producer - Closer distance vs. Jam purchased from the producer - Further distance
Treatment 3: Jam purchased from the retailer - Further distance vs. Jam purchased from the retailer - Closer distance
Treatment 4: Jam purchased from the retailer - Further distance vs. Jam purchased from the producer - Further distance
Subjects go through three rounds of auctions. In the first round they have no information about the attributes of the jams and they are asked to bid based on appearance only. In Round 2, they receive information about the jams and in Round 3 they get to taste the jams before they bid. The overall design combines elements of within- and between-subjects design.
In each auction round subjects receive a random determined default bid drawn between {0, 3.5} euros. They are randomly assigned to one of a two time pressure treatments so that they either have 20 secs to change their bids or 40 secs to change their bids with the understanding that the standing bids will be the binding ones.
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After
Subjects receive a 30 Euro coupon for participation and then participate in a zero counting task for 10 rounds, where they can earn up to 50 cents per round, so that they make up to 5 Euros by round 10. They are told from the beginning that for only 1 subject in each group their decisions will be realized and only for that subject earnings from the zero counting task and winnings from the auction are realized.
Subjects are randomly assigned to one of the following treatments, where we vary on a between-subjects basis the fig jam available for auction. Subjects bid simultaneously for two of the jams:
Treatment 1: Jam purchased from the producer - Closer distance vs. Jam purchased from the retailer - Closer distance
Treatment 2: Jam purchased from the producer - Closer distance vs. Jam purchased from the producer - Further distance
Treatment 3: Jam purchased from the retailer - Further distance vs. Jam purchased from the retailer - Closer distance
Treatment 4: Jam purchased from the retailer - Further distance vs. Jam purchased from the producer - Further distance
Subjects go through three rounds of auctions. In the first round they have no information about the attributes of the jams and they are asked to bid based on appearance only. In Round 2, they receive information about the jams and in Round 3 they get to taste the jams before they bid. The overall design combines elements of within- and between-subjects design.
In each auction round subjects receive a random determined default bid drawn between {0, 3.5} euros. Subjects will be randomly assigned to a time pressure of 20, 30, 40 or 50 seconds with the understanding that the standing bids will be the binding ones after time expires.
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Field
Experimental Design (Public)
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Before
Subjects receive a 30 Euro coupon for participation and then participate in a zero counting task for 10 rounds, where they can earn up to 50 cents per round, so that they make up to 5 Euros by round 10. They are told from the beginning that for only 1 subject in each group their decisions will be realized and only for that subject earnings from the zero counting task and winnings from the auction are realized.
Subjects are randomly assigned to one of the following treatments, where we vary on a between-subjects basis the fig jam available for auction. Subjects bid simultaneously for two of the jams:
Treatment 1: Jam purchased from the producer - Closer distance vs. Jam purchased from the retailer - Closer distance
Treatment 2: Jam purchased from the producer - Closer distance vs. Jam purchased from the producer - Further distance
Treatment 3: Jam purchased from the retailer - Further distance vs. Jam purchased from the retailer - Closer distance
Treatment 4: Jam purchased from the retailer - Further distance vs. Jam purchased from the producer - Further distance
Subjects go through three rounds of auctions. In the first round they have no information about the attributes of the jams and they are asked to bid based on appearance only. In Round 2, they receive information about the jams and in Round 3 they get to taste the jams before they bid. The overall design combines elements of within- and between-subjects design.
In each auction round subjects receive a random determined default bid drawn between {0, 3.5} euros. They are randomly assigned to one of a two time pressure treatments so that they either have 20 secs to change their bids or 40 secs to change their bids with the understanding that the standing bids will be the binding ones.
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After
Subjects receive a 30 Euro coupon for participation and then participate in a zero counting task for 10 rounds, where they can earn up to 50 cents per round, so that they make up to 5 Euros by round 10. They are told from the beginning that for only 1 subject in each group their decisions will be realized and only for that subject earnings from the zero counting task and winnings from the auction are realized.
Subjects are randomly assigned to one of the following treatments, where we vary on a between-subjects basis the fig jam available for auction. Subjects bid simultaneously for two of the jams:
Treatment 1: Jam purchased from the producer - Closer distance vs. Jam purchased from the retailer - Closer distance
Treatment 2: Jam purchased from the producer - Closer distance vs. Jam purchased from the producer - Further distance
Treatment 3: Jam purchased from the retailer - Further distance vs. Jam purchased from the retailer - Closer distance
Treatment 4: Jam purchased from the retailer - Further distance vs. Jam purchased from the producer - Further distance
Subjects go through three rounds of auctions. In the first round they have no information about the attributes of the jams and they are asked to bid based on appearance only. In Round 2, they receive information about the jams and in Round 3 they get to taste the jams before they bid. The overall design combines elements of within- and between-subjects design.
In each auction round subjects receive a random determined default bid drawn between {0, 3.5} euros. Subjects will be randomly assigned to a time pressure of 20, 30, 40 or 50 seconds with the understanding that the standing bids will be the binding ones after time expires.
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